Add progress data when using cryptget

www/common/cryptget.js

@@ -52,11 +52,12 @@ define([
         Object.keys(b).forEach(function (k) { a[k] = b[k]; });
     };
 
-    var get = function (hash, cb, opt) {
+    var get = function (hash, cb, opt, progress) {
         if (typeof(cb) !== 'function') {
             throw new Error('Cryptget expects a callback');
         }
         opt = opt || {};
+        progress = progress || function () {};
 
         var config = makeConfig(hash, opt);
         var Session = { cb: cb, hasNetwork: Boolean(opt.network) };
@@ -65,6 +66,7 @@ define([
             var rt = Session.session = info.realtime;
             Session.network = info.network;
             Session.leave = info.leave;
+            progress(1);
             finish(Session, void 0, rt.getUserDoc());
         };
 
@@ -72,6 +74,16 @@ define([
             finish(Session, info.error);
         };
 
+        // We use the new onMessage handler to compute the progress:
+        // we should receive 2 checkpoints max, so 100 messages max
+        // We're going to consider that 1 message = 1%, and we'll send 100%
+        // at the end
+        var i = 0;
+        config.onMessage = function () {
+            i++;
+            progress(Math.min(0.99, i/100));
+        };
+
         overwrite(config, opt);
 
         Session.realtime = CPNetflux.start(config);